
Concept explainers
A game at a fund-raiser: There are 20 rubber ducks floating in a pool. One of the ducks has a mark on the bottom, indicating that the contestant wins a prize. Each contestant pays 25 cents to play. A contestant randomly picks 2 of the ducks. If the contestant picks the duck with the mark on the bottom, the contestant wins a prize that costs $1.
a. What is the probability that a contestant will win a prize? Explain.
b. If 200 people play the game, about how many people would you expect to win? Why?
c. Based on your answer to part (b), how much money should the duck game be expected to earn for the fund raiser (net) if 200 people play it? Explain.

Want to see the full answer?
Check out a sample textbook solution
Chapter 16 Solutions
Mathematics for Elementary Teachers with Activities, Loose-Leaf Version Plus MyLab Math -- Access Card Package (5th Edition)
- A population of deer in Pierce County currently has 1875 deer, but due to urban development, the population is decreasing at a rate of 1.1% a year. a) Assuming this growth rate continues, find the formula for a function f(t) describing this population. b) In how many years will the population reach 1300? Do the problems on your own paper, show all your work, and submit your scanned work below. Choose File No file chosenarrow_forward● Question 7 Solve the equation. log2(3m - 5) = log2(m +8) m n = Question 8arrow_forwardQuestion 4 If log2(6x+3).= 4, then x = You may enter the exact value or round to 4 decimal places.arrow_forward
- Question 8 Find the domain of y = log(62x). The domain is: Question 9arrow_forwardQuestion 3 Rewrite 4 = log₂(16) in exponential form. Question 4 症 If log, (6x+3)= 4, then rarrow_forwardQuestion 6 Find the solution of the exponential equation 2t 100(1.07) 2 = 500,000 in terms of logarithms, or correct to four decimal places. t=arrow_forward
- Question 6 Find the solution of the exponential equation 100(1.07)² = 500, 000 in terms of logarithms, or correct to four decimal places. t = Question 7 Solve the equation.arrow_forwardI need help on 10arrow_forward|x6|= 5 The distance between x and is spaces on the number line, in either direction. Next Partarrow_forward
- 6 pts 1 Details 3 Find a formula for the exponential function passing through the points -3, and (3,375) 125 f(x) = Question 3arrow_forward18. Let X be normally distributed with mean μ = 2,500 and stan- dard deviation σ = 800. a. Find x such that P(X ≤ x) = 0.9382. b. Find x such that P(X>x) = 0.025. ة نفـة C. Find x such that P(2500arrow_forward17. Let X be normally distributed with mean μ = 2.5 and standard deviation σ = 2. a. Find P(X> 7.6). b. Find P(7.4≤x≤ 10.6). 21 C. Find x such that P(X>x) = 0.025. d. Find x such that P(X ≤x≤2.5)= 0.4943. and stan-arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage LearningHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning




